The Transport Refrigeration market has recently made the news with some impressive growth statistics. The newly launched report into the market explains the increase in demand for refrigerated vehicles due to developing cold chain operations, rising per capita income and changing in food consumption patterns (Find out more at www.whatech.com )

What is transport refrigeration?

With the risk of stating the obvious, transport refrigeration creates the link in the cold chain allowing frozen or chilled produces to reach the end user in the correct temperature environment. A common misunderstanding is the idea that refrigerated vehicles are used to cool down the produces, when in fact they are used to keep the produces at the same temperature they left the manufacturer before reaching the end user, so to stop them from warming up during the journey.

How do refrigerated vehicles work?

First thing first, refrigeration units fitted within fridge vans do not make ‘cold’ but they remove heat. The more heat is removed from an environment, the colder it becomes. If a chilled or frozen produce is placed in a warm environment it will absorb the heat and start to warm up.

A refrigerated unit is made up of three main parts:

– The evaporator: this part has tubes containing cold liquid refrigerant which absorbs heat from the surrounding air, turning the refrigerant from liquid into low-pressure gas. The gas is then pumped away from the evaporator together with the absorbed heat
– The compressor: this part is used to pump the refrigerant into a high pressure gas
– The condenser: this part has outside air blown through it which removes heat from the refrigerant gas and turns it back into liquid to go round the circuit again

So a refrigerated vehicles uses a refrigeration unit to remove heat from inside the fridge van to keep the produce at the correct frozen or chilled temperature.

Where does the heat come from?

Heat can reach the inside of a refrigerated vehicles from the following:
– Some leaks in through the body and its insulation
– Some gets in each time the doors are opened
– Some may still be produced by the load, even after it’s been cooled

For a refrigerated vehicle to successfully do its job the insulated body and the refrigerated unit must work together in perfect harmony as a complete system. The insulated lining kits must be as effective as possible in keeping the majority of the heat from penetrating the inside of the fridge van, and the refrigerated unit chosen must be powerful enough to remove the heat that leaks in.

The CoolKit team is trained to design and manufacture bespoke insulated lining kits to suit specific van makes and models and bespoke requirements the end user needs to meet with their refrigerated vehicle. Once the kit has been designed and we have an understanding of the amount of the heat that may leak into the vehicle, it is then possible to choose the most effective refrigeration unit to carry out the job at hand, making sure each fridge van we convert and deliver to our customers are made to order and will effectively answer the refrigerated demands of their deliveries. Contact our team on 0845 459 5418.

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